package com.info.zhiduoduo.admin.filter;

import org.springframework.stereotype.Component;

import java.io.IOException;

import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**
 * Created by TerryJ on 2017-03-14.
 */

@Component
public class CorsFilter implements Filter {

    @Override
    public void doFilter(ServletRequest req, ServletResponse res,
                         FilterChain chain) throws IOException, ServletException {

        HttpServletRequest request = (HttpServletRequest) req;
        HttpServletResponse response = (HttpServletResponse) res;
        //测试环境用【*】匹配，上生产环境后需要切换为实际的前端请求地址
//        response.setHeader("Access-Control-Allow-Origin", request.getHeader("Origin"));
        response.setHeader("Access-Control-Allow-Origin", "*");
        response.setHeader("Access-Control-Allow-Methods", "POST,GET,DELETE,PUT,OPTION");
        response.setHeader("Access-Control-Allow-Headers", "x-requested-with,content-type,SR_TOKEN");
        response.setHeader("Access-Control-Allow-Credentials","true");
        chain.doFilter(req, res);
    }

    @Override
    public void destroy() {
    }

    @Override
    public void init(FilterConfig arg0) throws ServletException {
    }

}

